Effectiveness of Bedside Ultrasound Technique in Volume Management of RRT in Patients with AKI
Objective:To investigate the efficacy of bedside ultrasound technology applied in volume management of continuous renal replacement therapy(RRT)in patients with acute kidney injury(AKI).Methods:39 patients with AKI diagnosed and treated with RRT at the hospital from June 2021 to May 2023 were prospectively included and divided into control group(20 patients)and observation group(19 patients)with computer-generated random numbers.Both groups of patients were treated with RRT,and central venous pressure(CVP)was adopted to guide volume management during the treatment of patients in the control group,and bedside ultrasound technology was adopted to guide volume management during the treatment of patients in the observation group.Tricuspid annular systolic displacement(TAPSE),internal diameter of the inferior vena cava(IVC),respiratory variability of the internal diameter of the inferior vena cava(IVCRVI),and CVP levels were recorded in the observation group before treatment,30 min,6 h,12 h,36 h,and 48 h after treatment.Cardiac function[left ventricular ejection fraction(LVEF),Tei index]was compared between the two groups after 48 h of treatment,and the occurrence of hypotension during treatment was recorded.Results:The levels of TAPSE and IVCRVI of patients in the observation group increased 30 min,6 h and 12 h after treatment,and the internal diameter of the IVC decreased compared with that before treatment,while TAPSE,IVCRVI and the internal diameter of the IVC stabilized 36 h and 48 h after treatment.The differences in the levels of TAPSE,IVC inner diameter and IVCRVI at each time point were statistically significant(F=138.896,16.407,149.492;P<0.05),and the differences in the levels of CVP at each time point were not statistically significant(F=0.518,P>0.05).After 48 h of treatment,the LVEF of patients in the observation group was higher than that of the control group,and the Tei index was lower than that of the control group,and the difference was statistically significant(t=8.722,4.349;P<0.05).The incidence of hypotension during treatment in the observation group was lower than that in the control group,and the difference was statistically significant(x2=4.811,P<0.05).Conclusion:Bedside ultrasound technology has good application in volume management of RRT in patients with AKI to improve cardiac function,and reduce the risk of hypotension.
Acute kidney injuryContinuous renal replacement therapyBedside ultrasoundCentral venous pressureCardiac function